Question about Weller D550 Soldering Gun

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Hi: I got a soldering gun at a garage sale ( no manual) How do you keep the soldering tip from falling out of the gun? The nuts are tight but the tip just falls out of the holes. Theanks for any help you can give.

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HERE their is a collar that slips over the tip holder theirs screws that go through the holes on the tips that secure the melting tip hope this helps

Posted on Sep 01, 2010

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Posted on Jan 02, 2017

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1 Answer

Do stained glass soldering tips go bad or stop working. I have a weller soldering iron that doesn't heat up hot enough to solder. is it the tip or the iron


If this is the dual trigger Weller gun and your tips are held in place by either set screws or by locking nuts, Just loosen both of the parts that are holding the tip to the gun and then retighten them back up. Soldering iron tips that appear to be tight might not be and this will insure that the tip is indeed tight and also cleans up the connection of the tip to the soldering iron. Oxidation from heating and cooling will cause a tip to not get very hot. Loosen the tip holder and then retighten it. Hope this gets you going again.
Dennis

Apr 15, 2017 | Weller Welding Tools

2 Answers

It will not heat up, maybe tip needs to be cleaned, if so how? I lost the manual. Thank you..


I am assuming that you installed a new tip. Note, the tip ends have to be 3/8 of an inch 90 degree bend so that when you insert the tip leads into the barrels, they go into the small holes in the barrels. Also note, the nuts to tighten the tip into the gun have to be installed onto the tip leads before bending the leads. Now when the tip is installed this way, the nuts tighten and hold the tip in the barrel. This tightening of the nuts allow the tip to have a good electrical connection to the barrels and this is what allows the tip to heat. You actually have an electrical current that passes through the barrels and the tip. It is a very low voltage (around 2) but a very high current. Over time the tip will not heat, this is a sign to either tighten the nuts, or look at the tip to see if it has a break in it. If it has an open, then it is time to change the tip.

Feb 12, 2011 | Weller 8200 Soldering Gun

1 Answer

When i put the tips in my gun it just falls out what do i need to do to fix it


There should be two nuts (ldome shaped nuts) on the end of the tubes that have the holes in them where you are installing the tips. They need to be tightened with the wrench that is supplied with the gun. Let me know if this helps. Thanks

Dec 19, 2010 | Weller 8200 Soldering Gun

1 Answer

Need 2 know how 2 take temp of Lenk soldering gun model 2000.not sure if its getting 2 correct temp.whats temp supposed 2 be,in ferenheit?i have a Etex digital multimeter.really dont know how 2 use it...


It needs to be at least 600 degrees F and should reach 800 or so. 60/40 solder melts around 600, but flows better at about 700 degrees. Most soldering guns require a on-off-on--- sequence to keep the tip at proper temperature. If your gun doesn't seem to be heating, try tightening the tip nuts. Hope this helps!

Oct 27, 2010 | RTO Wall Lenk Corp. LG2000K Soldering Gun...

1 Answer

Weller 8200 series soldering gun sometimes fails to heat; tightening screws and/or gently spreading arms often helps. Is there a permanent fix?


There is constant maintenance needed to keep soldering, the key ones are the tip fastening nuts, and the tip itself. The tip eventually needs sanding and immediate retinning, Clean with damp rag during and after each soldering event, and heavily re tin at end of event.

Sep 14, 2010 | Weller Welding Tools

1 Answer

How long to i leave it on


Turn it on long enough to melt solder, then switch off for a short time. Repeat this process as you solder to avoid oxidizing the tip and solder, yet keeping the solder fluid. If it starts to poorly heat the tips, tighten the tip nuts somewhat to break the oxidation that occurs on the bare copper. Hope this helps!

May 31, 2010 | Weller Standard Tip: 7200

1 Answer

Intermittent heat on Weller D550 although lights stay on. When not working, moving the terminals may get it to start working again. Sometimes, just moving the gun will interrupt the heat. Continuity...


Heat gun tips often get bad electrical connection where the nuts tighten to the tip ends. Remove the tip, clean the ends, re-install the tip, making sure the nuts TIGHTEN onto the tip ends. Your problem is common and always caused by a poor connection at the tip ends/nuts.

Jun 20, 2009 | RTO Weller D550 Soldering Gun

1 Answer

Weller model 550PK heavy-duty soldering gun is slow to heat up


It depends on what you say is slow, I have used weller soldering guns and desoldering guns for about 30 years. They come up to top heat in about 3min. If it is taking longer than that then there is a problem with the heating unit. You can call weller tech help number, should be on iron base and they can tell you how to test the heat unit.

Mar 24, 2009 | Weller D550PK Professional Soldering Gun...

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